Python show-me-the-code question No. 0003 Redis operation

question No. 0003: Save the 200 activation codes (or coupons) generated by 0001 questions to the Redis non-relational database.

Similar to the 0002 question, it is just the exchange of relational databases with non-relational databases.
Steps:

• Install Redis and libraries first, install with PIP
• Open Radis Server
• Then understand the operation of Redis
• Introducing the library into your code
• Connect to a database, write data, save

Python is very convenient to connect to Redis, and the operation is similar to REDIS-CLI.

Since the generated activation code should be non-repeatable, I chose to save it using the set data structure.

Common operations for Redis set data types are:

• Sadd Key member inserts a member member into the collection, returning the actually inserted member
• Smembers Key gets all the members in the set associated with the key.
• Sismember Key member checks if member is a member of the collection key. Return 1
• SCard Key gets the number of members in key

0003.Redis operation. py

#!/usr/bin/env python#coding: utf-8import redisimport gennerate_codeHOST =  ‘localhost‘6379#连接到数据库r = redis.Redis(HOST,PORT)#生成200组激活码codelist = gennerate_code.generate(200)#将生成的激活码存入数据库中for i in xrange(200):    r.sadd("code",codelist[i])r.save()

Where Gennerate_code is the code in the Python show-me-the-code No. 0001 generating the activation code

Python show-me-the-code question No. 0003 Redis operation